// index.js
Page({
  data: {
    region: ['广东省', '广州市', '从化区'],
    key:'943ea3da67264997913695ae6800c47e',
    locationId:'',
    weather:''
  },


bindRegionChange: function (e) {
  console.log('picker发送选择改变，携带值为', e.detail.value)
  this.setData({
    region: e.detail.value
  })

this.getLocationId()
},
getLocationId:function(){
  var that = this
  var key = this.data.key
   //调用该函数获取用户选的的地区

  wx.request({

      url: 'https://geoapi.qweather.com/v2/city/lookup?'+ 'location=' + this.data.region[2] + '&key=' + key,

    //如果请求成功

      success: function (res) {
          console.log('获取到了locationid啦',res.data.location[0].id) //把请求到的locationId赋值给data中的locationId
         that.setData({
           locationId: res.data.location[0].id
            })
        console.log("这是我们用用户的地区去请求回来的locationid"+res.data.location[0].id)
        that.getWeather()
          }
        })
      },

      getWeather:function(){
        //获取指针
        var that = this
        //这是我们的和风天气复制过来的key
        //再复习一下，我们请求天气需要什么？ 1.key，2.城市名字（城市名字是通过picker选择的）=> locationid
        var key = that.data.key
        var locationId = that.data.locationId
        console.log("太好啦，我们已经有key--->" + key)
        console.log("太好啦，我们已经有--->" + locationId)
        //请求天气数据
        wx.request({
          url: 'https://devapi.qweather.com/v7/weather/now?' + 'location=' + locationId + '&key=' + key,
          //如果请求成功
          success: function (res) {
            //把请求到的天气数据赋值给data中的weather
            that.setData({
              weather: res.data.now
            })
            console.log(res.data.now)
          }
        })
      },
       //页面加载
  onLoad:function(options){
    //每次打开页面调用这个函数然后获取从化区的天气
    this.getLocationId();
  }
    })
